Sperm separation to get a girl

Conventional techniques[ edit ] Several methods have been used to sort sperm before the advent of flow cytometry. Density gradient centrifugation in a continuous or discontinuous gradient can concentrate semen samples with low concentration of sperm, using the density of sperm as a measure of their quality. However, use of sperm centrifugation is detrimental to the sperm viability and elicits production of reactive oxygen species. However, because flow cytometry-based sperm sorting often uses fluorescent dyes that often stain DNA, the safety of this technique in human reproductive medicine is a matter of scientific discussion. It evaluates if they contain the larger X chromosome giving rise to a female offspring or smaller Y chromosome leading to male progeny.

Methods of Gender Selection

No more disappointments: Choose the sex of your child | Society | The Guardian

Share via Email Unless there are serious medical grounds, it is illegal in the UK to choose the sex of your child. We sit around a glass coffee table. The room is clean and modern, the furnishings are that chicken soup colour favoured by architects — and expensive private clinics. Which is just where they are heading. The Gunns want a baby girl.

Sex selection: Getting the baby you want

These methods work on the premise that they separate the X and Y-sperm by use of centrifugation. During centrifugation, controlled spinning causes particles in a sample to become sorted into layers according to density of those particles. Sorting separates the more dense X-sperm from the lighter Y-sperm. One half of the sperm normally produced by a healthy male will carry the Y-chromosome producing a male child, and the other half of the sperm will be the X-chromosome producing a female child.

A couple may choose this option to prevent certain genetic diseases or to promote family balancing. Prior to insemination of the egg, sperm sorting separates X-chromosome female sperm from Y-chromosome male sperm, both of which determine the sex of the offspring. This distinguishes sperm sorting from PGD, in which a fertilized embryo is chosen for transferal to the uterus based on its sex.

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